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The cost of DVD players has dropped by $20 each year. If a DVD player cost $189 four years ago, how much does it cost today
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The cost of DVD players has dropped by $20 each year. If a DVD player cost $189 four years ago, how much does it cost today
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Jan 12, 2019
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The cost of DVD players has dropped by $20 each year. If a DVD player cost $189 four years ago, how much does it cost today
Mathematics
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Thomas Dussaut
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it costs $189-(4×$20) which is $189-$80=$109
Wei Shi
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Jan 17, 2019
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Wei Shi
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